| Kasterlee to Olivenza | 1,046.14 mi (1,683.61 km) |
| Kasterlee to Olot | 637.18 mi (1,025.44 km) |
| Kasterlee to Onate | 664.19 mi (1,068.92 km) |
| Kasterlee to Onda | 819.07 mi (1,318.16 km) |
| Kasterlee to Onteniente | 899.87 mi (1,448.20 km) |
| Kasterlee to Orihuela | 953.83 mi (1,535.04 km) |
| Kasterlee to Osuna | 1,086.42 mi (1,748.43 km) |
| Kasterlee to Ourense | 861.74 mi (1,386.83 km) |
| Kasterlee to Oviedo | 742.12 mi (1,194.33 km) |
| Kasterlee to Paiporta | 856.85 mi (1,378.96 km) |
| Kasterlee to Pajara | 1,865.42 mi (3,002.11 km) |
| Kasterlee to Palafolls | 670.11 mi (1,078.44 km) |
| Kasterlee to Palafrugell | 650.33 mi (1,046.60 km) |
| Kasterlee to Palamos | 655.45 mi (1,054.84 km) |
| Kasterlee to Palencia | 779.27 mi (1,254.12 km) |
